<?php
/*
 * CKFinder
 * ========
 * http://ckfinder.com
 * Copyright (C) 2007-2011, CKSource - Frederico Knabben. All rights reserved.
 *
 * The software, this file and its contents are subject to the CKFinder
 * License. Please read the license.txt file before using, installing, copying,
 * modifying or distribute this file or part of its contents. The contents of
 * this file is part of the Source Code of CKFinder.
 */
if (!defined('IN_CKFINDER')) exit;

/**
 * @package CKFinder
 * @subpackage CommandHandlers
 * @copyright CKSource - Frederico Knabben
 */

/**
 * Include base XML command handler
 */
require_once CKFINDER_CONNECTOR_LIB_DIR . "/CommandHandler/XmlCommandHandlerBase.php";

/**
 * Handle RenameFile command
 *
 * @package CKFinder
 * @subpackage CommandHandlers
 * @copyright CKSource - Frederico Knabben
 */
class CKFinder_Connector_CommandHandler_RenameFile extends CKFinder_Connector_CommandHandler_XmlCommandHandlerBase
{
	/**
	 * Command name
	 *
	 * @access private
	 * @var string
	 */
	private $command = "RenameFile";


	/**
	 * handle request and build XML
	 * @access protected
	 *
	 */
	protected function buildXml()
	{
		if (empty($_POST['CKFinderCommand']) || $_POST['CKFinderCommand'] != 'true') {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_INVALID_REQUEST);
		}

		if (!$this->_currentFolder->checkAcl(CKFINDER_CONNECTOR_ACL_FILE_RENAME)) {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_UNAUTHORIZED);
		}

		if (!isset($_GET["fileName"])) {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_INVALID_NAME);
		}
		if (!isset($_GET["newFileName"])) {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_INVALID_NAME);
		}

		$_config =& CKFinder_Connector_Core_Factory::getInstance("Core_Config");
		$fileName = CKFinder_Connector_Utils_FileSystem::convertToFilesystemEncoding($_GET["fileName"]);
		$newFileName = CKFinder_Connector_Utils_FileSystem::convertToFilesystemEncoding($_GET["newFileName"]);

		$oRenamedFileNode = new Ckfinder_Connector_Utils_XmlNode("RenamedFile");
		$this->_connectorNode->addChild($oRenamedFileNode);
		$oRenamedFileNode->addAttribute("name", CKFinder_Connector_Utils_FileSystem::convertToConnectorEncoding($fileName));

		$resourceTypeInfo = $this->_currentFolder->getResourceTypeConfig();
		if (!$resourceTypeInfo->checkExtension($newFileName)) {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_INVALID_EXTENSION);
		}

		if (!CKFinder_Connector_Utils_FileSystem::checkFileName($fileName) || $resourceTypeInfo->checkIsHiddenFile($fileName)) {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_INVALID_REQUEST);
		}

		if (!CKFinder_Connector_Utils_FileSystem::checkFileName($newFileName) || $resourceTypeInfo->checkIsHiddenFile($newFileName)) {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_INVALID_NAME);
		}

		if (!$resourceTypeInfo->checkExtension($fileName, false)) {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_INVALID_REQUEST);
		}

		if ($_config->forceAscii()) {
			$newFileName = CKFinder_Connector_Utils_FileSystem::convertToAscii($newFileName);
		}

		$filePath = CKFinder_Connector_Utils_FileSystem::combinePaths($this->_currentFolder->getServerPath(), $fileName);
		$newFilePath = CKFinder_Connector_Utils_FileSystem::combinePaths($this->_currentFolder->getServerPath(), $newFileName);

		$bMoved = false;

		if (!file_exists($filePath)) {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_FILE_NOT_FOUND);
		}

		if (!is_writable(dirname($newFilePath))) {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_ACCESS_DENIED);
		}

		if (!is_writable($filePath)) {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_ACCESS_DENIED);
		}

		if (file_exists($newFilePath)) {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_ALREADY_EXIST);
		}

		$bMoved = @rename($filePath, $newFilePath);

		if (!$bMoved) {
			$this->_errorHandler->throwError(CKFINDER_CONNECTOR_ERROR_UNKNOWN, "File " . CKFinder_Connector_Utils_FileSystem::convertToConnectorEncoding($fileName) . "has not been renamed");
		} else {
			$oRenamedFileNode->addAttribute("newName", CKFinder_Connector_Utils_FileSystem::convertToConnectorEncoding($newFileName));

			$thumbPath = CKFinder_Connector_Utils_FileSystem::combinePaths($this->_currentFolder->getThumbsServerPath(), $fileName);
			CKFinder_Connector_Utils_FileSystem::unlink($thumbPath);
		}
	}
}
